A short sequel to Godzilla Appears at Godzilla Fest, released on G-Fest 2021 and dedicated to the 50th anniversary of original Godzilla vs. Hedorah (1971).

Godzilla attacks Tokyo, in a last-ditch effort to end the carnage, scientists enlist the help of Jet Jaguar, a mechanical guardian. Will Jet Jaguar stop Godzilla's rampage or will Godzilla destroy Tokyo once and for all?

Some time after Godzilla's battle with Hedorah, a new threat emerges. Gigan, a cyborg dinosaur from the outer space, confronts Godzilla while trying to invade the Earth.

Godzilla attacks the Tokyo Metropolitan Government Building, smashing a massive hole in the structure, but is intercepted by a modified Super X2 developed in secret by the Tokyo government.

A continuation of "Godzilla Fest 4: Operation Jet Jaguar", it's Godzilla and Jet Jaguar vs. a new King Ghidorah!

Godzilla suddenly makes landfall from Tokyo Bay. The Self-Defense Forces begin their attack in Kabukicho, Shinjuku. However, during the battle, it is discovered that Godzilla’s body temperature is rising rapidly…!